Reinforced concrete structure.



M. DUMAS.

REINEORCED CONCRETE STRUCTURE.

APPLIGATION FILED ma. a, 1909.

942,625a Patented Dec. 7, 1909.

2 SHEETS-SHEET l,

M. DUMAS.

EEINFORGED CONCRETE STRUCTURE.

APPLIGATION FILED MAR. 1909.

942,625. Patented Dec. 7, 1909.

2 SHEETS-SHEET, 2.

...WW2 @yi Annnsw a www m, Pncmmnocuwms. msu www, n. a

will STATE@ frisur risica.

LSSEGYOR T) LEON MONNOYEF. in EELS,

R'BNIGRCED CONCRETE STRUCTURE.

Specification of ietters Patent. Pgttgd t?? jtl.

Application filed March 8, lOS. Serial No. 482,107'.

To all whom it may concern:

it lrnovvn that I, Mannion Dunas, a subject of the King of Belgium,residing at Ko. 112 line de liiederlterle, Brussels, in the Kingdom ofBelgium, have invented certain new and useful improvements in ReinforcedConcrete Structures, of which the following is a specification.

rhis invention has for its object improvements in reinforced concretestructures its principal object being to simplify considerably the ivorlof the builders by dispensing with the eofi'ering necessitated by theconstruction of monoliths of reinforced concrete by the methodsheretofore adopted.

Another object of the invention is to permit of building, by means ofelements of uniform dimensions, structures presenting a more or markedconicity.

These objects are obtained by utilizing, for structures of this kind7separate elements of concrete manufactured and previously prepared insuch a manner that the builders need do nothing -more than assemblethem. These elements consist broadly speaking of blocks. slabs7 orkeystones and connecting members or ribs7 of such forms that, Whenarranged in position to form a structure they constitute together at thejoints recesses adapted for the reception of the reinforcing membersthat connect them one with the other and of the concrete in which thesemembers are embedded. rl`he coffering is reduced to a single board pervertical joint between the ends of tivo adjacent blocks or keystones forclosing the space which separates them on the side opposite to theconnecting rib. The blocks and connecting ribs are adapted to serve forthe construction of straight Walls as Well as for broken or circularWalls and tapering structures can be formed from them by reducing theinterval betiveen the extremities of the blocks in each successivecourse.

Applications of the invention are illustra Aed by Way of example in theaccompanying drawing, in Which:

Figure l represents in plan the arrangement of the various elements forthe construction of a straightv Wall. Fig. 2 is a similar View of thearrangement of the elements for the construction of an angular orpolygonal Wall. Fig. 3 is a similar vievv showing the same arrangementas Fig. 2 but With a smaller distance between the ends of the tivoadjacent blocks. Fig. al is a similar view showing the arrangement ofthe elements for the formation of an angle rib. Fig. 5 is a verticalsection on the line AMA in Fig. l, shouting a number of superposedcourses forming a ivall.

Referring to the drawings c', a are the blocks, slabs or keystones, L isthe connecting rib, c is the board constituting the coffering, d. e arevertical rods of the framework or reinforcement of the structure, f is ainforcing rod which connects all the blocks of a` course horizontallyone with the other. f/ is an iron hoop Which connects the tvvo verticalr ds (Z and e, /L is a band iron constituting the reinforcement of theconnecting rib, b, and e' represents the concrete With which the spacesbetween the various elements are tilled after they have been ar` rangedin position.

Each of the blocus a is formed 'With a longitudinal groove j in itsupper fr ce for receiving the reinforcing rod j and preferably vvith anangular reinforcement 7c at the end of its outer face and serving to fitinto the rib .7).

Each of the connecting ribs 7) is formed of a block the rear face ofwhich is recessed throughout its entire height in such a manner that itis Ll-shaped in horizontal section and that when several of these ribsare superposed their recesses together form a` continuous verticalgroove.

lYhen the blocks ci are intended to form together a straight Wall, theyare arranged With their grooves in line one With the other and inalinement with the vertical reinforcing rod d, which extends throughoutthe. height of the Wall to be constructed, as represented in F ig. l,and When they are to form an angle, they are arranged obliquelyrelatively to each other as shown in F 2 and 3. rEhen in front of theends of their outer faces there is arranged a connecting rib 1When theblocks form an angle (Figs. 2 and 3) the edges Z of the rib which areadjacent to the outer faces of these blocks, preferably present aninclination corresponding to the sides of this angle. A. board c is thenfixed against the extremities of the inner faces of the blocks; thisboard is fashioned in such a manner as to fit against these faces andthe space com prised betiveen the inner faces of the sheath b and of theboard e is hlled with concrete.

Vhen the concrete comes level with the channel in the blocks a, thehorizontal reinforcing rod f is arranged in the channel and a horizontalreinforcing rod 7L is arranged in the cavity in the sheath I); these tworods arc arranged against the inner faces of the Vertical reinforcingrods (Z and e which are then connected one with the other by means of abinding of strong wire g. Finally the rods f and /t and the binding gare covered with concrete after which a fresh course is laid.

rlhe form of the blocks, of the ribs and of the reinforcing rods andtheir arrangement may be modified within Very wide limits withoutdeparting from the principle of the intention. Thus, for example, theend of a wall may be constituted as shown in F ig. e, in which the rib bsurrounds all the faces of the end of the block a.

iii/That I claim and desire to secure by Letters atent of the UnitedStates is l. A structure of reinforced concrete consisting of blocks ofconcrete arranged end to end with a variable space between theiradjacent ends, in combination with concrete connecting ribs the rearfaces of which are recessed throughout their entire height, these ribscovering the outer faces of the' ends of each pair of blocks, horizontalreinforcing means connecting these blocks one with the other, Verticalreinforcing means located in the recesses of the ribs, means forconnecting together the horizontal and Vertical reinforcing means and aconcrete mortar filling entirely the spaces between the blocks andbetween the blocks and the ribs and embedding the reinforcing means.

2. A structure of reinforced concrete consisting of blocks of concretearranged end to end along the two sides of an angle with a variablespace between their adjacent ends, in combination with connecting ribsof concrete U-shaped in cross-section the ends of the lateral faces ofthe said ribs being applied to the outer faces of said blocks iniroximity to their adjacent ends, horizontal reinforcing meansconnecting the said blocks one with the other, vertical reinforcingmeans located in the recesses of the ribs, means for connecting togetherthe horizontal and Vertical reinforcing means and a conn crete mortarfilling entirely the spaces between the blocks and between the blocksand the ribs and embedding the reinforcing means.

3. A structure of reinforced concrete consisting of superposed courseseach formed of concrete blocks arranged end to end along the two sidesof an angle with a space between their adjaeent ends, this space beingless in one course than in the preceding course, in combination withsuperposed concrete connecting ribs U-shaped in cross-section, the endsof the lateral faces of the said ribs being applied to the outer facesof the said blocks in proximity to their adjacent ends, horizontalreinforcing means connecting the said blocks one with the other,vertical reinforcing means located in the recesses of the ribs, meansfor connecting tcgether the horizontal and vertical reinforcing meansand a. concrete mortar filling entirely the spaces between the blocksand between the blocks and theribs and embedding the reinforcing means.

In testimony whereof I affix my signature in presencel of two witnesses.

MAURICE DUMAS.

Witnesses H. T. E. KIRKPATRICK, AD. VOGEL.

